Scouring-roll.



C. E. GRAHAM.

SCOURING ROLL.

APPLlCATlON FILED JULY 8.1915.

1,326,495. Patented Dec. 30,1919.

TTED SATES PATENT FFTOE.

CHARLES E. GRAHAM, OF SWAMPSCOTT, lIIASSAGHUSETTS, ASSIG'NOR, IBY MESNE ASSIGNMENTS, T0 UNITED SHOE MACHINERY CORPORATION, OF PATERSON, NEVT JERSEY, A CORPORATION OF NEVT JERSEY.

SGOURING-ROLL.

Application filed July 8, 1915.

To all whom it may concern Be it known that I, CHARLns E. GRAHAM, a citizen of the United States, residing at Swampscott, in the county of Essex and State of Massachusetts, have invented certain Improvements in Securing-Rolls, of which the following description, in connection with the accompanying drawings, is a specification, like reference characters on the drawings indicating like parts in the several figures.

This invention relates to grinding or polishing tools and is herein illustrated in connection with a split roll or wheel for scourin the heels of boots and shoes.

@ueh rolls commonly comprise a hub and a two-part body portion the parts of which are hinged together, the hub being fast to the shaft and one of the body portions being permanently attached to the hub. With this construction it is not possible to remove the body portion without removing the hub from the shaft.

One feature of the present invention relates to a grinding or polishing roll having a detachable body portion comprising a plurality of sections, a hub adapted to be fixed to the shaft, and means for readily fastening said sections to and removing them from said hub while said hub remains fixed to said shaft. In the illustrative embodiment of the invention the two hinged sections of the body portion are each provided with pins which project from the sides thereof, said pins being received in cam slots formed'in flanges of the hub which itself is fast to the shaft. /Vhen, therefore, it is desired to re move the body portion, all that is neces' sary is to hold the shaft and turn thebody portion with respect to the hub. The body portion may thus be removed and replaced without disturbing in any way the hub or any part of the machine proper.

This and other features of the invention,

including certain details of construction and combinations of parts, will be described in connection with an illustrative roll and pointed out in the appended claims.

Referring now to the accompanying draw-.

Figure 1 is a perspective of a scouring roll in which the present invention is embodied;

Fig. 2 is a section of said roll;

Specification of Letters ratent.

Patented Dec. 30, 1919.

Serial No. 38,712.

Fig. 3 is a perspective of the flanges which form the hub.

The hub comprises two flanges 3 which may be attached to the shaft 1 by set screws 4-. Each flange is provided with two eccentric cam slots 5, 7, the slots 5 and 7 being respectively in register when the flanges are in position, as shown in Fig. 3. These flanges 3, which form the hub of the roll, have inwardly projecting annular bearings 30 to receive the center 9 of the body portion, said center comprising two semi'circular sections hinged together at 11 in the usual manner. Extending around the center 9 is the usual felt pad 13, and carried by said pad is the abrasive cover 15. EX- tending through the sections of the center 9 are two pins 17, 19, the ends of the pin 17 being adapted to cooperate with the slots 5 and those of the pin 19 with the slots 7 as clearly shown in Fig. 1.

Th manner of assembling the complete roll is as follows: The flanges are attached to the shaft at the pro-per distance apart. The body portion is then clasped about the hub thus formed with the pins 17, 19 in the mouths of the slots 5, 7. The shaft is then held stationary while the body portion of the roll is turned whereupon the free ends of the sections of the body portion are drawn together to grip the abrasive cover while at the same time the body portion as a whole is drawn tightly into place on the hub. By reversing the procedure which has been described above the body portion may readily be removed. Although it is stated above that the shaft and hub are held stationary while the body portion is turned, it is obvious that relative angular movement between the hub and the body portion, however it may be brought out, is all that is necessary to fasten the body section to or to unfasten it from the hub. Hitherto it has been customary when the felt pad has become worn to send the roll back to the factory to have it re-felted and this has necessitated the removal of the whole roll from the shaft. With the present construction the body portion at most need be removed and returned. It has been found, however, that the whole body portion of the present roll can be manufactured at about what it has cost to re-felt the ordinary roll, so that away the body portion when it becomes worn and to replace it by a new one. Again, with the present construction, when a wider roll is desired it is necessary merely to re-. place the body portion by a wider one since the hub is adjustable as to width.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent of the United States is:

l. A grinding or polishing roll having, in combination, a body comprising a plurality of sections, a hub adapted to be fixed to a shaft, said body being at all times free from connection with the shaft, except through the hub, and means for readily fastening the sections of the body to and for unfastening them from the hub in such. manner that the body may be removed from the hub and shaft while said hub remains fixed and immovable upon said shaft.

f3. grinding or polishing roll having, in combination, body comprising a plurality of hinged sections, a hub adapted to be fixed to a shaft, said body being at all times free from connection with the shaft, except through the hub, and means for readily fastening the sections of the body to and for unfastening them fron'i the hub in such manner that the body may be removed from the hub and shaft while said hub remains fixed and immovable upon said shaft.

3. A grinding. or polishing roll, having, in combination, a detachable body comprising two hinged sections adapted when opened to be placed in and removed from position with respect to a shaft by moving the body transversely of the axis of the shaft, pins projecting from each section, and a hub in two sections fixed to the shaft, each section having cam slots to receive the pins.

4. A grinding or polishing roll, having, in combination, a bony comprising two sections hinged together and adapted when opened to be placed in and removed from concentric position with respect to a shaft by moving the body transversely of the axis of the shaft, a hub fixed on the shaft and interengaging means on each section of the roll and on the hub for detachably locking both sections of the roll directly to the hub and for unlocking then'i therefrom while maintaining the hub fixed and immovable upon the shaft.

5. A grinding or polishing roll, having, in combination, a body comprising separable sections, a hub fixed to a shaft, and independent means constructed and arranged to permit each section to be locked directly to and unlocked from the hub while maintaining the hub fixed and immovable upon the shaft.

6. A grinding or polishing roll, having, in combination, a hub adapted to be fixed to a shaft, body comprising hinged sections, and connections between each. section and the hub such that relative angular move ment between the shaft and the body compels the sections to swing equally in opposite directions.

7. A rinding or polishing roll, having in combination, a detachable body comprising two hinged section adapted when opened to be placed in and removed from position with respect to a shaft by moving the body transversely of the axis of the shaft, said body when closed having the form of hollow cylinder, a hub fixed to the shaft, said hub comprising flanges spaced to receive between them the ends of the cylindrical body and projecting portions to contact with the interior bore of the cylindrical body and thereby support it, and interengaging means on each section of theroll and on the flanges constructed and arranged, when the roll is turned in one direction with respect to the shaft to clamp the sections about the projecting portions and when the roll is turned in the opposite direction to free the roll from the shaft.

In testimony whereof I have signed my name to this specification.

CHARLES E. GRAHAM. 

